Hibiscus plant named ‘Summer in Paradise’

ABSTRACT

A new and distinct cultivar of winter-hardy, herbaceous, perennial, hybrid  Hibiscus  plant named ‘Summer in Paradise’ comprising a upright habit of multiple, well-branched, basal stems producing flowers from the top to bottom of the plant. Flowers are hot cerise red with dark red shiny eye accented with a column producing bright yellow pollen. The foliage is three to five-lobed, deeply incised, and dark green colored blushed with greyed reddish-purple.

Botanical classification: Hibiscus hybrid (L.).

Variety denomination: ‘Summer in Paradise’.

BACKGROUND AND ORIGIN OF THE PLANT

The present invention relates to the new and distinct hardy, herbaceous, hibiscus plant, Hibiscus ‘Summer in Paradise’ hybridized under direction of the inventor on Jul. 23, 2012 at a wholesale perennial nursery in Zeeland, Mich. The new plant is a single seedling selected from a cross between a proprietary unreleased rose mallow known by the breeder code 11-42 times ‘Jazzberry Jam’ (not patented). The seeds were harvested in the fall of 2012 and the specific seedling which passed the initial trial in the summer of 2014 at which time it was assigned the breeder code labeled # 12-135-2. Both parents have a complex mixture of species in them, comprising the species: moscheutos and coccineus. Hibiscus ‘Summer in Paradise’ was first asexually propagated in 2014 by sterile shoot-tip tissue culture at the same nursery in Zeeland, Mich. The resultant asexually propagated plants have been found to be stable and true to type in successive generations of asexual reproduction.

No plants of Hibiscus ‘Summer in Paradise’ have been sold under this or any name, either in this country or anywhere in the world, prior to the filing of this application, nor has any disclosure been made prior to the filing of this application with the exception of that which was within one year of the filing of this application and was derived directly or indirectly from the inventor.

BRIEF SUMMARY OF THE PLANT

Hibiscus ‘Summer in Paradise’ differs from its parents as well as all other hardy herbaceous hibiscus known to the applicant in many traits. The most similar hibiscus in flower color known to the applicant are Hibiscus ‘Sultry Kiss’ U.S. Plant Pat. No. 23,300, ‘Cranberry Crush’ U.S. Plant Pat. No. 21,984, ‘Mars Madness’ U.S. Plant Pat. No. 27,838 and ‘Vintage Wine’ U.S. Plant Pat. No. 27,839. The new plant differs from ‘Sultry Kiss’ most significantly in having a more compact habit and more basal branching. Compared with the new plant, ‘Cranberry Crush’ has flower petals are more cupped, the petal color has a more reddish orange hue and less reddish purple and the plant habit is shorter and less broad. Compared with ‘Mars Madness’ the new plant is more upright in habit with larger flowers of a slightly different color and the foliage is more frequently five-lobed. The new plant compares with ‘Vintage Wine’ by having a more frequently five-lobed leaf rather than ovate of ‘Vintage Wine’ and the flower is larger and less reddish-purple hue. Compared with ‘Jazzberry Jam’ the new plant is more compact in habit, has flatter less ruffled petals and the flower is more hot cerise red rather than the pinkish-magenta. Comparison of the female parent is not possible as the parent was not maintained.

Hibiscus ‘Summer in Paradise’ is a unique hardy herbaceous hibiscus with the following combined traits:

-   -   1. Winter-hardy, perennial with upright habit of multiple,         well-branched, basal stems.     -   2. Many rotate flowers of hot cerise red produced from bottom to         top of plant.     -   3. Flower petals having darker red eye zone set off with column         of bright yellow pollen.     -   4. Dark green, deeply-incised, tri- to penta-lobed foliage         blushed with greyed reddish-purple.

BRIEF DESCRIPTION OF THE DRAWINGS

The photographs of the new plant demonstrate the overall appearance of the plant, including the unique traits. The colors are as accurate as reasonably possible with color reproductions. Ambient light spectrum, source and direction may cause the appearance of minor variation in color.

FIG. 1 shows a four-year-old plant in full flower in a trial garden.

FIG. 2 shows a close-up of the flower.

DETAILED BOTANICAL DESCRIPTION

The following descriptions and color references are based on the 2001 edition of The Royal Horticultural Society Colour Chart except where common dictionary terms are used. The new plant, Hibiscus ‘Summer in Paradise’, has not been observed under all possible environments. The phenotype may vary slightly with different environmental conditions, such as temperature, light, fertility, moisture and maturity levels, but without any change in the genotype. The following observations and size descriptions are of three-year-old plants in the loamy-sand, open-field full-sun trials of a nursery in Zeeland, Mich. with supplemental fertilizer and water as needed. The plants are of natural habit and were not treated with plant growth regulators, nor were they pinched at any time in the growth year.

-   Parentage: A proprietary unreleased hibiscus known by the breeder     code 11-42 (female, seed parent) with ‘Summer Storm’ U.S. Plant Pat.     No. 20,443, ‘Plum Crazy’ U.S. Plant Pat. No. 11,854 and ‘Midnight     Marvel’ U.S. Plant Pat. No. 24,079 in the background times Hibiscus     ‘Jazzberry Jam’ (male, pollen parent). -   Propagation:     -   -   Method.—Stem cuttings and sterile shoot-tip plant tissue             culture division.         -   Time to initiate roots from tissue culture.—About two weeks.         -   Rooting habit.—Normal, branching, developing thick to about             2.8 cm diameter, fleshy; root color creamy yellow between             RHS 161D and lighter than RHS 159D depending on soil type.         -   Crop time.—Under normal summer growing conditions 12 to 16             weeks to flower in a four-liter container from cutting.             Plant vigor is very good. -   Plant description:     -   -   Plant habit.—Hardy herbaceous perennial with about 26 thick             upright and heavily branched main stems producing an upright             spreading mound to about 175.0 cm tall and about 150.0 cm             wide; about 8 primary branches per main stem protruding at             about 45° from horizontal; flowering from base to top of             plant with up to about 54 flowers per main stem, average             flowers per stem about 38.         -   Stem.—Terete, glabrous, glaucous; to about 175.0 cm tall and             about 2.8 cm diameter at base, average about 160.0 cm tall             and about 24.0 mm diameter at base.         -   Stem color.—Between RHS 144B and RHS 144A blushed with             nearest RHS 187A in regions of high light exposure.         -   Lateral branches.—Average about 8 per stem; terete,             glabrous, glaucous; to about 43.0 cm long and 8.0 mm             diameter, smaller distally.         -   Lateral branch color.—Between RHS 144B and RHS 144A blushed             with nearest RHS 187A in regions of high light exposure.         -   Internode.—About 24 nodes per stem below flowers, average             internode length about 4.0 cm of unpinched plant below             flowers.         -   Internode color.—Same as surrounding stem. -   Foliage description: Alternate; coarsely and irregularly dentate;     apex and side lobes acute; base rounded; glabrous abaxial and     adaxial; deeply incised nearly to petiole, tri- to penta-lobed;     slightly lustrous adaxial surface, matte abaxial surface; leaf     blades to about 22.0 cm long and about 25.0 cm across, average blade     size 18.0 cm long and 16.0 cm wide; no fragrance detected.     -   -   Foliage color.—Young expanding leaves — adaxial nearest RHS             137 A with blush of nearest RHS N187A, abaxial nearest RHS             144A with blushing of nearest RHS N187A; distal mature             leaves — adaxial nearest RHS 139A, abaxial nearest RHS 147B;             proximal mature leaves — adaxial between RHS 139A and RHS             137A, abaxial between RHS 138A and RHS 146A.         -   Veins.—Palmate; lustrous; costate on abaxial.         -   Vein color.—Young abaxial nearest RHS 147C and adaxial             nearest RHS 187C; mature abaxial nearest RHS 145C with some             blushing of nearest RHS 187C and adaxial between RHS 187C             and RHS 187B.         -   Petioles.—Mostly terete, proximally slightly applanate on             adaxial side near base; glaucous; glabrous; to about 14.5 cm             long and 7.5 mm diameter at base, average size about 10.0 cm             long and 6.2 mm wide at base.         -   Petiole color.—On young expanding leaves adaxial nearest RHS             146D with tinting of nearest RHS 187A, abaxial base nearest             RHS 144A with blush of nearest RHS 187A; on mature leaves             adaxial nearest RHS 146D blushed with nearest RHS 183B,             abaxial nearest RHS 144A. -   Flower description: Complete; actinomophic; mostly outward facing;     rotate; lasting up to two days on plant; no fragrance detected.     -   -   Buds one day prior to opening.—Ellipsoid with rounded apex             and bluntly rounded base; sepals adpressed to petals,             carinate at sepal fusions; about 8.2 cm long and about 5.6             cm diameter at petal base; petals opening slightly distally             one to two days prior to flattening.         -   Bud color.—Exposed petal color between RHS 187C and RHS 60A             with lighter veins the same color.         -   Epicalyx.—Typically 11 per flower; linear; entire, glabrous,             with margin micro ciliate; dull surface abaxial and adaxial;             sharply acute apex and truncate base, arcuate upwards near             apex; about 2.9 cm long and base of about 4.0 mm wide.         -   Epicalyx color.—Adaxial between RHS 138A and RHS 146A,             abaxial nearest RHS 146A.         -   Sepals.—Five, fused in basal 1.8 cm to form star-shaped             hypanthium about 8.2 cm across and 2.0 cm deep; acute apex;             glabrous; margin entire, edentate; abaxial and adaxial             surfaces matte; about 4.2 cm long, about 3.0 cm wide at             fusion.         -   Sepal color.—Adaxial base nearest RHS 146C and distal             nearest RHS 146B, veins nearest RHS 145B; abaxial between             RHS 144A and RHS 146B, veins not apparent, same as             surrounding tissue.         -   Flowers.—Solitary, up to 54 per main stem without pinching;             slightly cupped petals; mostly outwardly facing; natural             spread to about 25.0 cm across and 8.0 cm deep from center             to edge of petals; smaller in later season; with lustrous             red eye about 4.8 cm across; persist for one to two days;             effective for at least 7 weeks beginning early August; no             detectable fragrance.         -   Petals.—Five; microscopically puberulent abaxial and             adaxial, glabrous eye; adnate to the androecium to form a             column, imbricate to about 100% overlapping at widest part             (petals overlapping completely to the petals on either             side); petal near leading (inside) with slight longitudinal             fold; palmately veined, primary and secondary veins             impressed on adaxial and costate abaxial; shape: rounded             with distinct claw and limb; margins: entire, edentate;             apex: rounded; base: short claw-like; size: average about             17.3 cm across and about 12.5 cm long, claw base about 12.5             mm across (larger in earlier part of flowering season).         -   Petal color.—Adaxial nearest RHS 61B with eye nearest RHS             53A, and veins in longitudinal center near RHS 53A; abaxial             basal 1.5 cm between RHS 61D and RHS 61C, mid-section to             perimeter between RHS 61B and RHS 60C with veins between RHS             53B and RH 53C.         -   Gynoecium.—Single; partially enclosed in column. Column:             glabrous except base micro-puberulent, lustrous; about 5.2             cm long and base about 12.0 mm across; with pistil             protruding about 12.0 mm. Column color: between RHS 60A and             RHS 46A in basal 0.5 cm, middle portion nearest RHS 59D and             distal end between RHS 60A and RHS 46A. Style:             micro-puberulent in region above column; about 6.3 cm long,             penta-furcate in about distal 9.0 mm; branch diameter about             1.2 mm; color nearest RHS 53A. Stigma: typically five;             flattened globose, puberulent, about 4.5 mm in diameter and             1.5 mm tall; color nearest RHS 53A. Ovary: superior,             semi-globose, rounded apex and flat base; about 10.0 mm             across at base and about 7.0 mm tall; acute apex; color             between RHS 145B and RHS 145C.         -   Androecium.—Filaments: numerous, about 100; about 7.0 mm             long and about 0.3 mm diameter; attached along nearly the             entire length of column; color nearest RHS 60C proximally             and nearest RHS 60D distally. Anthers: flattened ellipsoid;             dorsifixed; about 2.5 mm long and 2.0 mm across and about             0.8 mm thick; color nearest RHS 8B. Pollen: abundant,             globose, less than 0.1mm long; color nearest RHS 8A. -   Pedicel: Terete, glabrous, glaucous; length from base of sepal to     abscission point about 9.0 cm long, from abscission point to stem     node about 6.6 cm long; about 3.5 mm wide; longer on early flowers     and decreasing in distal flowers; color nearest RHS 146B above     abscission and below nearest RHS 146D. -   Peduncle: Terete, glabrous, glaucous; flowering in the distal 56.0     cm; color nearest RHS 146C. -   Fruit: Penta-loculicidal capsule; pubescent along inner septa,     glabrous outside; nearly globose, cuspidate apex and flattened base;     about 30.0 mm long and 30.0 mm diameter; color nearest RHS 200B when     mature. -   Seed: Minutely floccose; globose; about 4.5 mm in diameter; color     nearest RHS N200A. -   Resistance: Hibiscus ‘Summer in Paradise’ has not displayed any pest     and disease resistance beyond that typical of hardy perennial     hibiscus. The plant grows best with plenty of moisture, but is able     to tolerate some drought once established. Hardiness at least from     USDA zone 4 through 9, and other disease resistance is typical of     that of other hardy hibiscus cultivars. 

I claim:
 1. A new cultivar of hardy herbaceous perennial Hibiscus hybrid plant named ‘Summer in Paradise’ as herein illustrated and described. 